Re: Diesel & cooking oil

From: Darrell Ramsell (daram@comcast.net)
Date: Sun Oct 02 2005 - 09:39:33 PDT

Hi Dick

You reminded me of a question I wanted to ask earlier on this topic.

I'm not a chemist, so I was wondering if anyone can tell me what is the
function of Lye and methanol when added to oil?

Thanks

Darrell

----- Original Message -----
From: "Dick" <rertman@ix.netcom.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, October 02, 2005 8:16 AM
Subject: Re: [MV] Diesel & cooking oil

> Kent:
>
> "Just cooking oil" is simply the oil used for cooking...usually in a deep
> fryer...from restaurants.
> It's simply filtered thru a filter that allows nothing larger than 2
> microns
> to pass thru, then added
> to the fuel tank such that the ratio is 80% petrodiesel and 20% cooking
> oil.
> This oil is usually
> referred to as waste vegetable oil (WVO).
>
> Biodiesel starts with WVO, then is processed using lye and methanol (an
> alcohol) and is then
> either added to the vehicle fuel tank along with the petrodiesel, or used
> 100% instead of petrodiesel.
>
> A note of caution. Running 100% biodiesel, or even a high percentage of
> biodiesel almost always
> requires modification of the vehicle's fuel delivery system because the
> biodiesel isn't compatible
> with rubber (synthetic or natural) hoses and seals designed for use with
> petrodiesel.
>
> For what it's worth, I mix 20% filtered WVO and 80% petrodiesel in my fuel
> tank.
>
> Regards,
>
> Dick
>
> ----- Original Message -----
> From: <santoken@bright.net>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: 02 October, 2005 06:28
> Subject: Re: [MV] Diesel & cooking oil
>
>
> I've been paying attention to this topic for some time, I have a question,
> what is the difference betwwn biodiesel and just cooking oil?
>
> Kent
>
>
>>
>> From: "Bjorn Brandstedt" <super_deuce@hotmail.com>
>> Date: Sun Oct 2, 6:35 AM
>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> Subject: Re: [MV] Diesel & cooking oil
>>
>>
>> Hoses and seals and even copper may be effected by biodiesel, no problem
>> with clean cooking oil.
>>
>> When you increase the percentage of oil you increase the chances of
>> injector coking. Maybe it should be called coking oil. :-)
>>
>> If you want to run on 100% oil, heat the tank and
>> start and shut down on diesel. That way the risk for coking is
>> minimized. It does require two fuel tanks.
>> My current project involves just that, I have installed a coolant
>> heating coil in the main tank and will add a second diesel tank
>> (about 10 gallons) for starting/warming up and shutting down to
>> purge the system of oil.
>> I have been running my deuce on biodiesel and some cooking oil and
>> diesel since April. Currently 100% biodiesel.
>>
>> Bjorn
>> MVPA19212
>> Meadows of Dan,Virginia
>>
>> 1968 M49A2C (modified), 1972 HIAB crane, M756 pipeline truck bed...
>>
>>
>>
>> >From: "Dick" <rertman@ix.netcom.com>
>> >To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> >Subject: Re: [MV] Deisle & cooking oil
>> >Date: Sat, 1 Oct 2005 17:48:05 -0700
>> >
>> >Thanks for the info, Darrell. I'm using 20% used frying oil in my
>> >Dodge/Cummins pickup truck.
>> >Someone on the list said not to use more than 20% vegetable oil because
>> >some
>> >hoses and seals
>> >might be damaged.
>> >
>> >Thanks again,
>> >
>> >Dick
>
>
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